/Engine/Source/Runtime/Engine/Public/Streaming/TextureMipDataProvider.h
Cancel the progression and release any temporary resources. Called within the FTextureStreamIn update when the stream in request is aborted or cannot complete correctly TheCancel()function is called on the thread returned byGetCancelThread().
void Cancel ( const [FTextureUpdateSyncOptions](API\Runtime\Engine\Streaming\FTextureUpdateSyncOptions) & SyncOptions )